I'm currently using titchy linux, which provides a kernerl (2.6.20), some utilities including the Xfbdev kdriver Xserver, and then I installed debian-arm (now testing, originally etch) on top of it. I have a borzoi (Zaurus 3100).
The X server is started with
exec /opt/kdrive/Xfbdev -screen 480x640@270 "$@"
because without the rotation it starts in portrait mode. But, I want to connect a mouse to it, to make it a bit easier to use as my only computer while I am on sabbatical next semester. The mouse works, but ignores the screen rotation, whether I set it like the above, or change the orientation to 0 and rotate with xrandr. I can only use the mouse naturally by holding it rotated 90 degrees, which of course makes it awkward to push the buttons.
I imagine someone using Angstrom with the e17 window manager would have the same problem, since for that we have to rotate the screen as well.
Does anyone know of a way to re-map the pointer axes? xsetpointer seems to do nothing, xmodmap doesn't have such a setting. I saw one commercial program, but it of course is not available for arm.
It might make life easier if the kdrive server used a config file (such configuration seems possible in xorg). I don't know whether trying to use the xorg server would be worth it, since I imagine that takes up a lot more resources. I even took the mouse apart to see if I could swap the wires around, but that would not be easy, and I don't know which goes where.
BTW, if anyone wants to know more about Titchy linux and how it works on my Z, I'll be glad to expound. I am just pleased as punch with it, mostly because it has all the apps I want/need, and by gum they all work. I'd like to see it done in armel rather than arm, but I could not get the suggested hack by Locutus to get debian armel up and running to work.